Stop-motion for twisting-machines.



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APPLIUAEIUK FILED FEE.. 24. 1903.

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No. 740,638. Patented October 6,1903.

UNI-,TED STATES" PATENT- OFFICE.

GEORGE I. FISKE, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO HOWARD AND BULLOUGH AMERICAN- MACHINE COMPANY, LIMITED, 'OF PAW- TUcK'E'r, RHODE IsLAND.

lSTOP-"Nlorion Foa TwlsTiNc-MAcHiNEs.

SPECIFICATION forming part of Letters :Patent No. 740,638, dated'october e, 1903.

I Application filed Fehruary, 1903. Serial No. 144,716. (No model.)

To @ZZ wwnt it Hwy Concern: tachments to the cap-bar, and Fig. 4 is aper Be it known that I, GEORGE I. FIsKE, a citi- 'spective view of the stop attachment. zen of the United States, residing at Provi- In the drawings, o, represents the bottom 55 dence, in the county of Providence and State roll of a twisting-machine, rotatably support- -of RhodeIsland,haveinventedanewand useed in the roller-stand a in the usual way. fullmprovement in Stop-Motions for Twist- Secured in the top of the roller-stand is the ing-Machines,of which the followingisaspeicap-bar b, having the openings b' h' for the y iication. arms ot' the stop attachments and the bearing 6o rl"his invention hasreference to an improveb2 for the journals of the top rolls b3 b3. The 1o ment in twisting-machines, and more part-icstop attachment c has the thin iiat metal nlarly to an improvement in stop-motionstongue c', the two wire arms c2 c2, secured to adapted to engage with the twisting-rolls of it by solder or other means withv the L-shaped twisting-machines. ends c? c3, and the curved wire leg c4, secured 65 In stop-motions for the twisting-rolls of at its upper end to thetongue c and having twisting-machines as heretoiore constructed the eye c5 on its lower end to engage with the the stop attachment is usually supported on thread de `The L-shaped ends on the arms of the journals of the top rolls. It has been the stop attachment limit the outward move- ,y found in practice thatthis causes wear and ment of the attachment by engaging with the 7o friction on the attachment and exerts a presedges ofl the openings h b', as shown in Fig. zo sure on the thread which holds the attach- 3, and the angle in the tongue c' forms a stop ment in its inoperative position greater than to limit Aits inward movement, as shown in the weight of the attachment, causing break- Fig. 2. The tongue c of the stop'attachment age of the thread. is placed in front of and parallel with the 75 The objects of my invention are to simplify rolls, with the arms ci'l c2 over the bottom roll. the construction of the stop-motion attach- The arms c2 c2 are spaced to clear the ends of ment, to construct it as light las possible, and the top roll and enter the openings h b in the to attach it to a xed part of the machine, cap b, where they are held by the L-shaped preferably to the cap-bar. ends c3 c3. 8o

My invention consists in the peculiar and Y In the operation of my improved stop-mo- 3o novelconstructionof the stopattachmentand tion the thread d comes from the bobbins the means for attaching it `to the cap-bar of through a guide-eye on the traverse-bar to a twisting-machine, whereby the attachment the twisting-rolls, where it passes over the is independent of the operative parts of the top roll and back of the bottom roll, then 85 machine when in its inoperative position, is through the eye c5 in the leg of the stop atoperated by the breaking of the thread, and taehment to a guide-eye on the finger-board, carried into its operative position by friction and then downward to a spool, the tension of on the bottom roll, as will be more fully set the thread in twisting holding the stop atforth hereinafter. tachment in its normal or inoperative posi- 9e Figure l represents a side elevation of a tion. As soon as thethread is broken the 4o roller-stand, showing my improved stop-moattachment falls. This brings the wire arms tion with the stop attachment in its inoperac2 o2 into frictional contact with the bottom tive position and the position it would asroll. Thebottom roll revolving in the direcsume after the thread breaks shownin broken tion of the arrow carries the attachment in- 95 lines. Fig. 2 is a view similar to Fig. 1, show ward, bringing the tongue c between the ing the stop attachment carried inl by fric-V rolls and raising the top rollout of engagetion on the'bottom roll, bringing the tongue ment .with the bottom roll, stopping the feed of the attachment between the rolls to raise of the thread. The arms ci c2 are on a plane thetop rollout of engagement with the bothigher than the tongue cl As the tongue roo tom roll and stop the feed of the thread. Fig. reaches the bite ot' the rolls the arms are 5o 3 is a' plan view of Fie'.l l with the bearings raised out of contact with the bottom roll,

on the cap-bar for the top rolls broken away preventing wear on the arms and roll. to show the means of attaching the stop at- Having thus described my invention, I

claim as new and desire to secure by Letters Patent- 1. In a stop-motion for twisting-machines, a stop attachment consisting of the thin at metal tongue c to engage the bite of the twisting-rolls, the two arms c2 c2 ou a plane higher than the tongue c to frictionally engage with the bottom roll, and having the L-shaped ends c3 c8 forming stops to limit its outward movement, and the curved leg c4 extending downward from the tongue c and having the eye c5 to engage with the thread, for the purpose as described.

2. In a stop-motion for` twisting-machines, the combination with the bottom roll a rotatably supported in the roller-stand ct', the capbar having the openings b b and the bea= ing b2 for the journals of the top rolls b5 b3, of the stop attachment c consisting of the thin Hat metal tongue c', the two wires c2 c2 on a plane higher than the tongue c' and movably attached to the Acap-bar with the L- shaped ends c3 c3 and the curved wire leg c4 with the eye c5, al1 for the purpose as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

GEORGE I. FISKE.

Witnessesi ADA E. HAGERTY, J. A. MILLER, J r. 

